If you're still wondering probably OT. Though mods usually don't care to move threads between the two

singapore got trains right imo

for me i have to get a monthly on the commuter rail and you pay a set price depending on your drop off points. They all look identical so it's easy to go to different stops or use different lines without anyone caring. If the train is too crowded they simply won't check, however.

on a train, got a first class ticket for £21 (from Scotland to Blackpool). have my tickets been checked once? nope..